All - I am looking for to buy used H17 sport. I plan to use it solo or with wife and two daughters (6 and 8 years old). When riding with whole family it will be just Sunday cruising. I am concerning about the boat capacity?Any advice would be appreciated.

Yeah, not the boat for that. Its a big windsurfer great for one person. Wave, or the bigger plastic boat (getaway?)- my neighbors have them and they pile people on! And have a blast. I may need to add one of those to the quiver.

I agree with the others. The H17Sport is a great solo boat, ok for two, but not for more. The H16, H18 or getaway would be better choices. All 3 can be soloed with the addition of a enhansed righting system (bag, power pole, shroud extenders, etc).